A Mixed-Methods Exploration of Barriers and Facilitators to Evidence-Based Practices for Obesity Prevention in Head Start.

Objective: To identify positive and negative deviant cases using quantitative fidelity data from a previous implementation of a nutrition intervention, Together, We Inspire Smart Eating (WISE), and to determine barriers and facilitators to fidelity by conducting qualitative interviews with deviant cases.

Design: Explanatory sequential mixed methods.

Setting: Head Start Program agencies in 2 southern US states.